<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>WebSocket Demo</title>
</head>
<body>
<button id="connectBtn">连接</button>
<button id="disconnectBtn">断开连接</button>
<div id="messageContainer"></div>

<script src="a2/a2.js"></script>
</body>
</html>
